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%I #17 Jul 04 2021 07:51:39
%S 2,3,7,89,101,293,4463,70067
%N Numbers k such that 12^k - 11^k is prime.
%C Terms greater than 1000 may correspond to unproven strong pseudoprimes.
%o (PARI) is(n)=ispseudoprime(12^n-11^n) \\ _Charles R Greathouse IV_, May 22 2017
%Y Cf. A000043, A057468, A059801, A059802, A062572-A062666.
%K nonn,hard
%O 1,1
%A _Mike Oakes_, May 18 2001, May 19 2001
%E New term 70067 (found in 2006) from _Jean-Louis Charton_, Sep 02 2009
%E Edited by _M. F. Hasler_, Sep 16 2013
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